A 19-year-old man was critically wounded when gunfire erupted in the Bronx early Sunday, police sources said. Police found Brandon Rivera after the ShotSpotter gunfire-detection system was activated at East...

NYPD Commissioner Bill Bratton says civil-liberties advocates who feel the department’s ShotSpotter technology will be used to eavesdrop on conversations should “get a life.” Bratton drew heavy criticism when he...